A SOLID-STATE NMR INVESTIGATION OF THE DOPABILITY OF POLY(P-PHENYLENE VINYLENE) MODEL COMPOUNDS AND CORRESPONDING POLYMERS WITH IODINE

被引：7

作者：

NOUWEN, J ^{[1
]}

ADRIAENSENS, P ^{[1
]}

FRANCO, D ^{[1
]}

VANDERZANDE, D ^{[1
]}

MARTENS, H ^{[1
]}

GELAN, J ^{[1
]}

YANG, Z ^{[1
]}

GEISE, HJ ^{[1
]}

机构：

[1] UNIV INSTELLING ANTWERP,DEPT CHEM,B-2610 WILRIJK,BELGIUM

来源：

SYNTHETIC METALS | 1992年 / 48卷 / 02期

关键词：

D O I：

10.1016/0379-6779(92)90057-P

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Twelve phenylene vinylene compounds, including poly(p-phenylene vinylene) (PPV), poly(2,5-dimethoxyphenylene vinylene) and the copolymer of PPV and poly(2,5-dimethoxyphenylene vinylene), have been prepared and doped with iodine to form electrically conducting materials. Characterization of the molecular structure and conductivity as a function of the dopant level for trans,trans-1,4-bis(2-(3,4,5-trimethoxyphenyl)ethenyl)benzene (MPV4) and trans-3,4,4',5-tetramethoxystilbene (MPV7) were carried out. Methoxy groups in a para position on the terminal rings contribute more to the conductivity than meta-substituted methoxy groups. This correlates well with the spectral changes that occur in the CP/MAS C-13 spectra upon doping. Conductivity measurements on trans-stilbene (MPV8), trans, trans-distyrylbenzene (MPV9) and all-trans PPV show a slight chain length dependency. Upon doping with iodine, cis-trans mixtures of MPV4 are converted to trans, trans isomers, and the original double bond configuration does not affect the conductivity.

引用

页码：143 / 159

页数：17

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